General Method for the Suzuki–Miyaura Cross-Coupling of Primary Amide-Derived Electrophiles Enabled by [Pd(NHC)(cin)Cl] at Room Temperature
作者:Peng Lei、Guangrong Meng、Yun Ling、Jie An、Steven P. Nolan、Michal Szostak
DOI:10.1021/acs.orglett.7b03191
日期:2017.12.15
temperature Suzuki–Miyaura cross-coupling of commonly encountered primary benzamides is reported. A combination of site-selective N,N-di-Boc-activation (tert-butoxycarbonyl activation) of the amide nitrogen with practical air- and moisture-stable, well-defined, and highly reactive [Pd(NHC)(cin)Cl] (NHC = N-heterocyclic carbene; cin = cinnamyl) provides a highly effective route to biaryl ketones from primary
据报道,室温下,通常遇到的主要苯甲酰胺的Suzuki-Miyaura交叉偶联是一种通用的,高度选择性的方法。酰胺氮的位点选择性N,N -di-Boc活化(叔丁氧基羰基活化)与稳定的空气和水分稳定的,定义明确的和高反应性的[Pd(NHC)(cin)Cl ](NHC = N-杂环卡宾; cin =肉桂基)提供了一种从伯酰胺高收率制备联芳基酮的高效途径。酰胺酰基交叉偶联首次获得了> 1000的TON。